9x9+81
81/7= 81 over 7, or 11.6
Answer:70
Step-by-step explanation:
Given
total of 7 friends need to be divided in two groups with 3 member each and 1 leader
leader can be chosen out of 7 person in 
ways
And 3 person out of remaining 6 persons in 
ways
thus a total of 
ways is possible
If order is not matter then
ways are possible
X is 20 degrees. Since it says that lines a and b are parallel and angles four and five are right next to each other, it means that when you add the two of them together you’ll get 180. Since it’s replaced with variables with coefficients, add the coefficients to get 9 and divide 180/9 to get 20. 20 is the value for x which is your answer
Cost per ounce for the 40-ounce peanut butter is
$5.20/40 = $0.13
cost per ounce for the 15-ounce peanut butter is
$2.70 / 15 = $ 0.18
Mia saves 5 cents or $0.05
Answer:
Step-by-step explanation:
cos(x) = sin(15°)
x = arccos(sin(15°)) = 75°
